Boiler waste gas treatment device

CN120799478APending Publication Date: 2025-10-17WENZHOU YONGHE ENERGY TECHNOLOGY CO LTD

Patent Information

Application Number
CN202511010131.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-22
Publication Date
2025-10-17

AI Technical Summary

Technical Problem

Existing boiler exhaust gas treatment devices lack an efficient multi-stage particulate matter purification mechanism, resulting in low efficiency in dust and particulate matter removal, making it difficult to meet environmental protection standards. In addition, there is a lack of effective acid gas treatment methods, resulting in secondary dust pollution and energy waste.

Method used

An intermittent motor-driven eccentric thumbwheel and reciprocating hammer assembly are used to automatically remove dust from the filter. Combined with a U-shaped gravity sedimentation design and a magnetic dust collection box, and equipped with multi-stage purification units such as a selective catalytic reduction reactor and an activated carbon adsorption reactor, multi-stage purification and waste heat recovery are achieved.

Benefits of technology

It improves the removal efficiency of particulate matter in exhaust gas, reduces secondary dust, lowers maintenance costs, realizes waste heat recovery and utilization, ensures that emissions meet standards, and improves equipment operation stability and energy efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention provides a boiler waste gas treatment device, and relates to the field of boilers and auxiliary equipment. A dust collecting box is inserted into the bottom of the rear side of the comprehensive treatment pipeline, a heat exchanger is fixedly installed on the outer side of the vertical middle of the comprehensive treatment pipeline, a dust blocking filter screen is slidably connected to the position, corresponding to the heat exchanger, in the inner wall of the comprehensive treatment pipeline, and an intermittent motor is fixedly installed on the outer wall of the rear side of the comprehensive treatment pipeline at the top of the dust blocking filter screen; a reciprocating hammering assembly is slidably connected to a front-end driving shaft of the intermittent motor, and a centrifugal motor is fixedly mounted in the middle of the top of the comprehensive treatment pipeline. An eccentric dial wheel and a reciprocating hammering assembly driven by an intermittent motor can automatically impact a filter screen to remove accumulated dust, manual maintenance is avoided, waste heat recycling is achieved through the design, the service life of equipment is prolonged through automatic cleaning of the filter screen, and the maintenance cost and energy consumption are reduced; the problems that particulate matter purification is low in efficiency, waste heat utilization is insufficient, deep purification is unstable, the maintenance cost is high, and emission is difficult to reach the standard are solved.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of boilers and auxiliary equipment, in particular to a boiler waste gas treatment device. BACKGROUND

[0002] As an important equipment for industrial production and life heating, the use of boilers is increasing, however, a large amount of waste gas containing dust, sulfur dioxide, nitrogen oxides and other pollutants will be generated during the combustion process of the boiler, if these waste gases are directly discharged into the atmosphere without effective treatment, it will cause serious pollution to the environment and harm human health.

[0003] The boiler waste gas treatment device can refer to patent No. CN218077133U, which mainly comprises a boiler body, a first filter box is communicated with one side of the boiler body through a first air suction pipe, a liquid storage tank is fixedly connected to the upper end of the first filter box, and a condenser is installed on the upper end of the liquid storage tank.

[0004] The existing boiler waste gas treatment device has the following deficiencies: due to the lack of efficient multi-stage particle purification mechanism, it only relies on single filtration or sedimentation method, and cannot realize the synergistic effect of gravity sedimentation, centrifugal separation and particle agglomeration at the same time, resulting in low removal efficiency of dust and particles in the waste gas, which is difficult to meet the increasingly stringent environmental protection standards, and the cleaning process is easy to produce secondary dust pollution, and the deep purification removal effect is unstable, and there is no effective treatment means for acidic gas and equipment dust, resulting in that the waste gas emission is difficult to continuously meet the standards, secondly, the recycling of waste heat is not sufficient, the traditional heat exchange equipment has simple structure, and the waste heat cannot be effectively utilized, causing energy waste, and the filter parts usually need to be cleaned frequently, which not only increases the maintenance cost, but also reduces the equipment operation efficiency due to filter screen blockage, affecting the overall energy consumption performance. SUMMARY

[0005] The present application relates to a boiler waste gas treatment device, which is intermittently driven by an eccentric cam and a reciprocating hammer assembly, which can automatically impact the filter screen to remove dust, avoiding manual maintenance, which not only realizes waste heat recycling, but also prolongs the service life of the equipment through automatic filter screen cleaning, reduces maintenance cost and energy consumption, and through the U-shaped gravity sedimentation design of the dust collection bin, the particles in the waste gas can be naturally deposited in the magnetic dust collection box, which is convenient for quick cleaning and reduces secondary dust.

[0006] The application provides a boiler exhaust treatment device, which specifically comprises a comprehensive treatment pipeline; a waste gas inlet and a boiler waste gas pipe are connected at the bottom of the front end of the comprehensive treatment pipeline, a steam inlet and a boiler steam pipe are connected at the front end of the comprehensive treatment pipeline, a pressurizing fan blade is installed in the steam inlet, a dust collection box is inserted at the bottom of the rear side of the comprehensive treatment pipeline, a heat exchanger is fixedly installed at the vertical middle part of the outer side of the comprehensive treatment pipeline, a dust blocking filter screen is slidably connected to the inner wall of the comprehensive treatment pipeline at the position corresponding to the heat exchanger, an intermittent motor is fixedly installed on the rear outer wall of the comprehensive treatment pipeline at the top of the dust blocking filter screen, an eccentric handle is fixedly connected to the middle part of the front end driving shaft of the intermittent motor, a reciprocating hammering assembly is slidably connected to the front end driving shaft of the intermittent motor, and a centrifugal motor is fixedly installed at the middle part of the top of the comprehensive treatment pipeline.

[0007] Further, a dust collection bin is formed at the bottom of the rear side of the comprehensive treatment pipeline, the dust collection bin is in the shape of a "U" as a whole, the dust collection box is inserted into the rear side wall of the dust collection bin, and the dust collection box is magnetically connected to the dust collection bin; the top of the dust collection bin is a vertical pipeline of the comprehensive treatment pipeline.

[0008] Further, an inner wall sliding groove is formed in the middle part of the inner wall of the vertical pipeline of the comprehensive treatment pipeline, a long strip-shaped connecting slot is equidistantly formed in the side wall of the comprehensive treatment pipeline at the upper side of the inner wall sliding groove, a tapered converging opening is fixedly connected to the inner wall of the comprehensive treatment pipeline at the upper side of the connecting slot, a treatment pipeline interface is formed in the side wall of the comprehensive treatment pipeline at the outer side of the converging opening, an inverted tapered centrifugal baffle is fixedly connected to the comprehensive treatment pipeline at the outer side of the top of the converging opening, and the bottom narrow opening of the centrifugal baffle is covered outside the top narrow opening of the converging opening.

[0009] Further, the heat exchanger is in the shape of a cylinder and is sleeved outside the comprehensive treatment pipeline, heat exchange fins are equidistantly installed on the inner wall of the heat exchanger, the heat exchange fins are inserted into the connecting slots formed in the side wall of the comprehensive treatment pipeline, the inside of the heat exchanger is hollow and filled with a heat exchange medium, and a reflux pipe is fixedly connected to the top of the left outer side wall of the heat exchanger.

[0010] Further, the dust blocking filter screen is in the shape of a tapered barrel as a whole, the dust blocking filter screen is slidably connected to the inner wall sliding groove formed in the inner wall of the comprehensive treatment pipeline at the bottom, and a reset spring is connected to the bottom of the dust blocking filter screen in the inner wall sliding groove.

[0011] Further, the reciprocating hammer assembly comprises a hammer block and a reset pressing plate, symmetrically connected with sliding guide blocks on the top of the front and rear outer walls of the cylinder of the hammer block, and a sliding groove is formed in the front and rear side walls of the sliding guide block, and a guide sliding groove is formed in the middle of the left and right side walls of the sliding groove, and the reset pressing plate is slidably connected in the sliding groove, and the guide sliding blocks in the middle of the left and right side walls of the reset pressing plate are slidably connected in the guide sliding groove, and the sliding rod fixedly connected in the middle of the top end face of the reset pressing plate is slidably connected in the top end face of the sliding guide block, and the sliding rod on the upper side of the reset pressing plate is sleeved with a supporting spring.

[0012] Further, the driving shaft of the centrifugal motor is fixedly connected with a centrifugal fan blade at the bottom, the centrifugal fan blade rotates in the centrifugal baffle at the top of the comprehensive treatment pipeline, and a spraying pipe is fixedly connected to the inner wall at the top of the comprehensive treatment pipeline on the outer side of the centrifugal fan blade, and the spraying pipe faces the inner wall of the centrifugal baffle.

[0013] Further, the outer side wall of the comprehensive treatment pipeline is connected with a cylindrical exhaust pipe at the top at equal distances, the bottom port of the exhaust pipe is located on the outer side of the centrifugal baffle, and a deep purification unit is fixedly installed in the exhaust pipe, and the deep purification unit is sequentially a selective catalytic reduction reactor and an activated carbon adsorption reactor from bottom to top, the selective catalytic reduction reactor is filled with high-efficiency catalyst, and the activated carbon adsorption reactor is filled with activated carbon with high specific surface area.

[0014] The present application provides a boiler exhaust gas treatment device, which has the following advantages: 1. Through the U-shaped gravity settling design of the dust collection bin, the particulate matter in the exhaust gas can be naturally deposited into the magnetic dust collection box, which facilitates quick cleaning and reduces secondary dust raising. The annular channel formed by the gathering port and the centrifugal baffle, combined with the centrifugal fan blade driven by the centrifugal motor, can separate the particulate pollutants through a centrifugal field, and the combination of the steam inlet and the pressurizing fan blade can increase the exhaust gas temperature and promote the agglomeration of particulate matter, thereby enhancing the subsequent filtration efficiency. This multi-stage purification structure realizes efficient removal of dust and particulate matter through gravity settling, centrifugal separation and particle agglomeration, significantly improving the exhaust gas pretreatment effect.

[0015] 2. The heat exchanger wraps the comprehensive treatment pipeline with a cylindrical structure and heat exchange fins, transfers the heat of the exhaust gas to the heat exchange medium, and recovers it through the return pipe, reducing energy consumption. The conical barrel-shaped dust blocking filter screen, combined with the inner wall sliding groove and the reset spring, increases the filtration area while ensuring sliding stability. The eccentric cam driven by the intermittent motor and the reciprocating hammer assembly can automatically impact the filter screen to remove dust, avoiding manual maintenance. This design not only recovers waste heat for reuse, but also prolongs the service life of the equipment and reduces maintenance costs and energy consumption through automatic cleaning of the filter screen.

[0016] 3. The selective catalytic reduction reactor and activated carbon adsorption reactor integrated in the exhaust pipe can remove nitrogen oxides and residual harmful gases and fine particles, ensure emission compliance, the spray pipe sprays cleaning liquid to the centrifugal baffle, can absorb acidic gases and flush out the separated particles, prevent dust accumulation in the equipment, the annular distribution of the exhaust pipe cooperates with the deep purification unit to form a complete treatment chain from physical separation to chemical catalysis, which not only improves the purification accuracy, but also enhances the equipment operation stability through the spraying system, and fully meets the environmental protection requirements. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings of the embodiments will be briefly introduced below.

[0018] The drawings described in the following description only relate to some embodiments of the present application, and are not a limitation of the present application.

[0019] In the drawings: Figure 1 is a schematic diagram of the shaft side structure of the boiler exhaust gas treatment device of the embodiment of the present application.

[0020] Figure 2 is a schematic diagram of the cross-sectional structure of the comprehensive treatment pipeline of the boiler exhaust gas treatment device of the embodiment of the present application.

[0021] Figure 3 is a schematic diagram of the cross-sectional structure of the comprehensive treatment pipeline of the boiler exhaust gas treatment device of the embodiment of the present application. Figure 2 is a schematic diagram of the enlarged structure of A of the boiler exhaust gas treatment device of the embodiment of the present application.

[0022] Figure 4 is a schematic diagram of the cross-sectional split structure of the comprehensive treatment pipeline of the boiler exhaust gas treatment device of the embodiment of the present application.

[0023] Figure 5 is a schematic diagram of the overall split structure of the boiler exhaust gas treatment device of the embodiment of the present application.

[0024] Figure 6 is a schematic diagram of the split structure of the reciprocating hammer assembly of the boiler exhaust gas treatment device of the embodiment of the present application.

[0025] Figure 7 is a schematic diagram of the cross-sectional structure of the main body of the comprehensive treatment pipeline of the boiler exhaust gas treatment device of the embodiment of the present application.

[0026] Figure 8 is a schematic diagram of the cross-sectional structure of the top end of the comprehensive treatment pipeline of the boiler exhaust gas treatment device of the embodiment of the present application.

[0027] LIST OF REFERENCE NUMERALS 1, comprehensive treatment pipeline; 101, steam inlet; 102, exhaust gas inlet; 103, dust collection bin; 104, inner wall sliding groove; 105, connecting slot; 106, gathering port; 107, centrifugal baffle; 108, exhaust pipe; 2, pressurizing fan blade; 3, dust collection box; 4, heat exchanger; 401, heat exchange fin; 402, return pipe; 5, dust blocking filter screen; 6, return spring; 7, intermittent motor; 701, eccentric handle; 8, hammer block; 801, sliding guide block; 802, sliding groove; 803, guide sliding groove; 9, reset pressing plate; 901, guide sliding block; 902, sliding rod; 903, supporting spring; 10, centrifugal motor; 1001, centrifugal fan blade; 11, spray pipe; 12, deep purification unit. DETAILED DESCRIPTION

[0028] In order to make the purpose, scheme and advantages of the technical scheme of the present application clearer, the technical scheme of the present application embodiment will be described clearly and completely below in combination with the drawings of the specific embodiments of the present application. Unless otherwise specified, the terms used herein have the meanings commonly used in the art. The same reference numerals in the drawings represent the same components.

[0029] Example one: please refer to Figures 1 to 8 As shown in the figure: The present application provides a kind of boiler exhaust treatment device, including comprehensive treatment pipeline 1, the bottom of the front end of comprehensive treatment pipeline 1 is equipped with exhaust gas inlet 102 and boiler exhaust pipe connection, the front end of comprehensive treatment pipeline 1 is equipped with steam inlet 101 and boiler steam pipe connection, pressurizing fan blade 2 is installed in steam inlet 101, dust collection box 3 is inserted in the bottom of the rear side of comprehensive treatment pipeline 1, heat exchanger 4 is fixedly installed on the vertical middle of the outer side of comprehensive treatment pipeline 1, dust blocking filter screen 5 is slidably connected in the inner wall of the corresponding place of heat exchanger 4 in comprehensive treatment pipeline 1, intermittent motor 7 is fixedly installed on the rear side outer wall of the top of dust blocking filter screen 5 in comprehensive treatment pipeline 1, eccentric handle 701 is fixedly connected in the middle of the front end drive shaft of intermittent motor 7, reciprocating hammering assembly is slidably connected on the front end drive shaft of intermittent motor 7, centrifugal motor 10 is fixedly installed in the middle of the top of comprehensive treatment pipeline 1, therefore, by exhaust gas inlet 102 and boiler exhaust pipe connection, it is guaranteed that exhaust gas can be stably input into comprehensive treatment pipeline 1, the setting of steam inlet 101 and pressurizing fan blade 2 makes boiler steam enter pipe be pressurized, and be mixed with exhaust gas, on the one hand, utilize steam heat to promote exhaust gas temperature, facilitate subsequent heat exchange and pollutant treatment, on the other hand, steam and exhaust gas mixed can increase the agglomeration of particulate matter, facilitate subsequent filtration and separation.

[0030] The bottom rear side of the comprehensive treatment pipeline 1 is provided with a dust collection bin 103, the dust collection bin 103 is in a "U" shape, a dust collection box 3 is inserted into the rear side wall of the dust collection bin 103, the dust collection box 3 is magnetically connected in the dust collection bin 103, and the top of the dust collection bin 103 is a vertical pipeline of the comprehensive treatment pipeline 1. Therefore, the U-shaped dust collection bin 103 can effectively utilize the gravity to make the particulate matter naturally settle in the dust collection box 3, the magnetic connection facilitates the quick disassembly and installation of the dust collection box 3, the convenient cleaning of the collected dust is realized, and the vertical pipeline design is beneficial to the upward flow of the airflow, thereby reducing the secondary flying of dust at the bottom.

[0031] The inner wall sliding groove 104 is provided in the middle of the inner wall of the vertical pipeline of the comprehensive treatment pipeline 1, the long strip-shaped connecting slot 105 is equidistantly provided in the side wall of the comprehensive treatment pipeline 1 on the upper side of the inner wall sliding groove 104, the conical gathering port 106 is fixedly connected to the inner wall of the comprehensive treatment pipeline 1 on the upper side of the connecting slot 105, the treatment pipeline interface is provided in the side wall of the comprehensive treatment pipeline 1 on the outer side of the gathering port 106, the inverted conical centrifugal baffle 107 is fixedly connected to the comprehensive treatment pipeline 1 on the outer side of the top of the gathering port 106, and the bottom narrow port of the centrifugal baffle 107 covers the outer side of the top narrow port of the gathering port 106. Therefore, the inner wall sliding groove 104 provides a stable sliding track for the dust blocking filter screen 5, ensures the accurate positioning and smooth movement of the dust blocking filter screen 5 in the pipeline, the connecting slot 105 is used for installing the heat exchange fin 401, the heat exchange efficiency is enhanced, the conical gathering port 106 can make the airflow contract and accelerate, the subsequent centrifugal separation effect is improved, the inverted conical centrifugal baffle 107 cooperates with the gathering port 106 to form an annular channel, and the airflow is forced to be separated under the action of centrifugal force, thereby effectively removing larger particulate pollutants.

[0032] The cylindrical exhaust pipe 108 is equidistantly connected to the top of the outer side wall of the comprehensive treatment pipeline 1, the bottom port of the exhaust pipe 108 is located on the outer side of the centrifugal baffle 107, the deep purification unit 12 is fixedly installed in the exhaust pipe 108, the deep purification unit 12 sequentially comprises a selective catalytic reduction reactor and an activated carbon adsorption reactor from bottom to top, the selective catalytic reduction reactor is filled with efficient catalyst, and the activated carbon adsorption reactor is filled with activated carbon with high specific surface area. Therefore, the annular distribution design of the exhaust pipe 108 can uniformly discharge the purified gas, avoid local pressure being too high, the selective catalytic reduction reactor can effectively remove nitrogen oxides in the exhaust gas, the activated carbon adsorption reactor can further adsorb the remaining harmful gas and fine particulate matter, deep purification of the exhaust gas is realized, and the finally discharged gas meets the environmental protection standard.

[0033] By the synergistic effect of the dust collecting bin 103, the gathering opening 106, the centrifugal baffle 107 and the exhaust pipe 108, the multi-stage purification treatment of the boiler exhaust gas is realized, from the preliminary gravity sedimentation, centrifugal separation to the deep catalytic reduction and adsorption purification, the dust, nitrogen oxides and other pollutants in the exhaust gas are effectively removed, the exhaust gas treatment efficiency and purification effect are improved, and the equipment maintenance and cleaning are facilitated.

[0034] The heat exchanger 4 is in the form of a cylindrical sleeve on the outside of the comprehensive treatment pipeline 1, equidistant heat exchange fins 401 are installed on the inner wall of the heat exchanger 4, the heat exchange fins 401 are inserted into the connecting slot 105 opened on the side wall of the comprehensive treatment pipeline 1, the inside of the heat exchanger 4 is hollow and filled with heat exchange medium, and the left outer side wall of the heat exchanger 4 is fixedly connected with a reflux pipe 402 at the top, so that the cylindrical heat exchanger 4 can fully wrap the comprehensive treatment pipeline 1, increase the heat exchange area, the heat exchange fins 401 are inserted into the pipeline through the connecting slot 105 and directly contact with the high-temperature exhaust gas, thereby improving the heat transfer efficiency, the heat exchange medium in the hollow structure can absorb the heat of the exhaust gas and deliver the heat to other equipment that needs to be heated through the reflux pipe 402, thereby realizing the recycling of waste heat and reducing energy consumption.

[0035] The dust blocking filter screen 5 is in the form of a conical barrel, the bottom of the dust blocking filter screen 5 is slidingly connected to the inner wall sliding groove 104 opened on the inner wall of the comprehensive treatment pipeline 1, and the bottom of the dust blocking filter screen 5 is connected with a reset spring 6 in the inner wall sliding groove 104, so that the conical dust blocking filter screen 5 increases the filtering area and improves the filtering efficiency, the inner wall sliding groove 104 ensures that the dust blocking filter screen 5 can slide along the predetermined track when subjected to external force, and the reset spring 6 provides a reset force to make the dust blocking filter screen 5 return to the initial position after being impacted, thereby ensuring the stability of the filtering effect.

[0036] The reciprocating hammering assembly comprises a hammering block 8 and a reset pressing plate 9, the top of the cylinder of the hammering block 8 is symmetrically connected with a sliding guide block 801, the front and rear sidewalls of the sliding guide block 801 are provided with penetrating sliding grooves 802, the middle of the left and right sidewalls of the sliding grooves 802 is provided with a guide sliding groove 803, the reset pressing plate 9 is slidably connected in the sliding groove 802, the guide sliding block 901 in the middle of the left and right sidewalls of the reset pressing plate 9 is slidably connected in the guide sliding groove 803, the top end of the sliding rod 902 fixedly connected in the middle of the top end face of the reset pressing plate 9 is slidably connected in the top end face of the sliding guide block 801, and the outer side of the sliding rod 902 on the upper side of the reset pressing plate 9 is sleeved with a supporting spring 903, therefore, the eccentric wheel 701 rotates to push the hammering block 8 to reciprocate, the sliding guide block 801 and the guide sliding groove 803 ensure the stability and accuracy of the movement of the hammering block 8, the reset pressing plate 9 and the supporting spring 903 provide the buffering and resetting functions after the hammering block 8 hits the dust filter screen 5, so as to avoid the damage of the rigid collision to the equipment, ensure the consistency of the hammering frequency and strength, effectively remove the dust on the dust filter screen 5, and maintain the filtering performance.

[0037] The above technical scheme is adopted, the heat exchanger 4 realizes the waste heat recycling, improves the energy utilization rate, the dust filter screen 5 and the reciprocating hammering assembly are used in cooperation, the effective filtration of the particulate matters in the exhaust gas is ensured, the service life of the filter screen is prolonged through the automatic cleaning function, the manual maintenance cost is reduced, and the operation stability and reliability of the entire exhaust gas treatment device are improved.

[0038] The bottom of the driving shaft of the centrifugal motor 10 is fixedly connected with a centrifugal fan blade 1001, the centrifugal fan blade 1001 rotates in the centrifugal baffle 107 at the top of the comprehensive treatment pipeline 1, the inner wall of the top of the comprehensive treatment pipeline 1 on the outer side of the centrifugal fan blade 1001 is fixedly connected with the spraying pipe 11, and the spraying pipe 11 sprays towards the inner wall of the centrifugal baffle 107.

[0039] The above technical scheme is adopted, the centrifugal motor 10 drives the centrifugal fan blade 1001 to rotate at a high speed, a strong centrifugal force field is formed in the centrifugal baffle 107, the particulate pollutants in the exhaust gas are further separated, the spraying pipe 11 sprays the purification liquid to the inner wall of the centrifugal baffle 107, the acid gas and part of the soluble pollutants in the exhaust gas can be absorbed, the separated particulate matters are flushed, the particulate matters are prevented from accumulating in the equipment, the purification effect of the exhaust gas and the operation stability of the equipment are improved, the entire device is treated through multiple stages of purification, the efficient and comprehensive treatment of the boiler exhaust gas is realized, and the environmental protection requirement is met.

[0040] The specific use and role of the embodiment are as follows: in the application, the waste gas inlet 102 is connected with the boiler waste gas pipe, the steam inlet 101 is connected with the boiler steam pipe, the pressurizing fan blade 2 is started to pressurize the steam and mix the steam with the waste gas, after the waste gas enters the comprehensive treatment pipeline 1, the dust particles are first settled in the dust collection bin 103 by gravity to the dust collection box 3, then the airflow passes through the inner wall sliding groove 104 and the connecting slot 105, waste heat recovery is carried out at the heat exchanger 4, the dust blocking filter screen 5 filters the dust particles, the intermittent motor 7 drives the eccentric wheel 701 and the reciprocating hammering assembly to clean the dust blocking filter screen 5, then the gas is further separated from the particulate pollutants under the centrifugal force field formed by the centrifugal motor 10 and the centrifugal fan blade 1001, the spraying pipe 11 sprays the cleaning liquid to absorb the acidic gas, finally, the purified gas is discharged after being deeply treated by the deep purification unit 12 in the exhaust pipe 108, and the multi-stage purification treatment of the boiler waste gas is completed.

[0041] The above merely describes the exemplary embodiments of the application, but is not used to limit the protection scope of the application, and the protection scope of the application is determined by the appended claims.

Claims

1. A boiler exhaust gas treatment device, characterized in that: The utility model comprises a comprehensive treatment pipeline; an exhaust gas inlet is provided at the bottom front end of the comprehensive treatment pipeline and is connected to the boiler exhaust gas pipe; a steam inlet is provided at the front end of the comprehensive treatment pipeline and is connected to the boiler steam pipe; a pressurized fan blade is installed in the steam inlet; a dust collecting box is plugged into the bottom rear side of the comprehensive treatment pipeline; a heat exchanger is fixedly installed on the outer side of the vertical middle part of the comprehensive treatment pipeline; a dust filter is slidably connected to the inner wall of the comprehensive treatment pipeline at the corresponding part of the heat exchanger; an intermittent motor is fixedly installed on the outer wall of the rear side of the comprehensive treatment pipeline on the top of the dust filter; an eccentric thumbwheel is fixedly connected to the middle part of the front end driving shaft of the intermittent motor; a reciprocating hammer assembly is slidably connected to the front end driving shaft of the intermittent motor; a centrifugal motor is fixedly installed at the middle part of the top of the comprehensive treatment pipeline.

2. A boiler exhaust gas treatment device according to claim 1, characterized in that: A dust collecting bin is provided at the rear side of the bottom of the comprehensive processing pipeline. The dust collecting bin is U-shaped as a whole. A dust collecting box is inserted into the rear side wall of the dust collecting bin. The dust collecting box is magnetically connected to the dust collecting bin. The top of the dust collecting bin is the vertical pipe of the comprehensive processing pipeline.

3. A boiler exhaust gas treatment device according to claim 1, characterized in that: An inner wall slide groove is opened in the middle of the vertical inner wall of the comprehensive treatment pipeline, and a long strip connecting slot is opened at a medium distance on the side wall of the comprehensive treatment pipeline above the inner wall slide groove. A conical gathering mouth is fixedly connected to the inner wall of the comprehensive treatment pipeline above the connecting slot, and a treatment pipeline interface is opened in the side wall of the comprehensive treatment pipeline outside the gathering mouth. An inverted cone-shaped centrifugal baffle is fixedly connected to the comprehensive treatment pipeline outside the top of the gathering mouth, and the bottom narrow mouth of the centrifugal baffle is covered on the outside of the narrow mouth of the top of the gathering mouth.

4. A boiler exhaust gas treatment device according to claim 1, characterized in that: The heat exchanger is cylindrical and is sleeved on the outside of the comprehensive treatment pipeline. Heat exchange fins are installed at equal distances on the inner wall of the heat exchanger. The heat exchange fins are inserted into the connecting slots opened on the side wall of the comprehensive treatment pipeline. The interior of the heat exchanger is hollow and filled with heat exchange medium. A return pipe is fixedly connected to the top of the left outer wall of the heat exchanger.

5. The boiler exhaust gas treatment device according to claim 1, characterized in that: The dust filter is in the shape of a cone barrel as a whole. The bottom of the dust filter is slidably connected to the inner wall slide groove opened on the inner wall of the comprehensive treatment pipeline. The bottom of the dust filter is connected to a reset spring in the inner wall slide groove.

6. A boiler exhaust gas treatment device according to claim 1, characterized in that: The reciprocating hammer assembly includes a hammer block and a reset pressure plate. The top of the front and rear outer walls of the cylinder of the hammer block are symmetrically connected with sliding guide blocks. A penetrating sliding groove is opened in the front and rear side walls of the sliding guide block. A guide slide groove is opened in the middle of the left and right side walls of the sliding groove. The reset pressure plate is slidably connected in the sliding groove in a rectangular shape. The guide slider in the middle of the left and right side walls of the reset pressure plate is slidably connected in the guide slide groove. The top of the sliding rod fixedly connected in the middle of the top end face of the reset pressure plate is slidably connected to the top end face of the sliding guide block. A support spring is sleeved on the outer side of the sliding rod on the upper side of the reset pressure plate.

7. The boiler exhaust gas treatment device according to claim 1, characterized in that: The bottom of the driving shaft of the centrifugal motor is fixedly connected with a centrifugal fan blade, which rotates in the centrifugal baffle at the top of the comprehensive treatment pipeline. A spray pipe is fixedly connected to the inner wall of the top of the comprehensive treatment pipeline outside the centrifugal fan blade, and the spray pipe faces the inner wall of the centrifugal baffle.

8. The boiler exhaust gas treatment device according to claim 1, characterized in that: A cylindrical exhaust pipe is connected to the top of the outer wall of the integrated treatment pipeline at equal distances. The bottom port of the exhaust pipe is located on the outside of the centrifugal baffle. A deep purification unit is fixedly installed in the exhaust pipe. The deep purification unit is a selective catalytic reduction reactor and an activated carbon adsorption reactor from bottom to top. The selective catalytic reduction reactor is filled with a high-efficiency catalyst, and the activated carbon adsorption reactor is filled with activated carbon with a high specific surface area.

Citation Information

Patent Citations

  • Industrial boiler waste gas treatment device

    CN218077133U

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